The higher the first number rise in the ratio the steeper the roof.
What does 12 12 roof pitch mean.
To figure the pitch of a roof you.
12 12 roof pitch angle 45 00 degrees.
The first is from the top of the roof.
There are two suggested ways to measure a roof pitch.
In the united states roof pitch is typically measured in inches and expressed as a ratio.
It is the most common way in us and canada to describe a roof s basic quality slope or steepness.
Here is a site that may help.
The second number is the horizontal area measured usually measured as a standard 12 inches one foot of roof.
12 12 roof pitch equivalents roof rises 12 in a length of 12.
The resulting angle would be 45 degrees.
12 12 roof pitch 45 degrees 12 12 roof pitch to angle 45 00 degrees also referred to as 12 12 roof slope 12 on 12 12 to 12 and 12 12 roof angle.
Roof pitch is represented in inches rise of 12 inches run.
Roof pitch is a term you may often hear from a roofer an architect or a framing contractor builder.
The picture below shows the pitch of a 7 12 roof slope meaning that for 12 of horizontal measurement roof run the vertical measurement roof rise is 7.
12 12 pitch means 12 inches out then 12 inches up.